★★★★☆
My adult daughter has Coeliac disease and although she can control her condition at home she is sometimes glutoned inadvertently (as she calls it when gluten has somehow entered her system) when she is eating out. She takes a 1/4 teaspoon of AC in a small glass of water when she gets home and it greatly reduces her symptoms. This may not work for everybody but it certainly works for her. It does of course depend on how much gluton she has ingested. Before taking AC it should be noted that AC can interfere with other medications if taken within 2 hours of ingestion.